Aspirin for the Primary Prevention of Cardiovascular Events: A Summary of the Evidence for the U.S. Preventive Services Task
Force

Figure 2. Results of the chi-square test for heterogeneity were 2.96 for coronary heart disease mortality, 5.36 for fatal
and nonfatal stroke events, and 1.58 for all-cause mortality ( > 0.2 in all cases). BMD = British Male Doctors' Trial; HOT
= Hypertension Optimal Treatment Trial; OR = odds ratio; PHS = Physicians' Health Study; PPP = Primary Prevention Project;
TPT = Thrombosis Prevention Trial.
Meta-analysis of the effect of aspirin on coronary heart disease mortality (top), fatal and nonfatal stroke events (middle), and all-cause mortality (bottom).P
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Ann Intern Med
January 15, 2002
vol. 136
no. 2
161-172